BANGOR, Maine — Camden Conference speakers, Brewster Grace and Charlie Graham, will hold a discussion on America’s place in global trade from 6:30 to 8 p.m. Wednesday, Dec. 7, at the Bangor Public Library. The presentation is offered as a free community event in anticipation of the 25th Annual Camden Conference, to be held in February. For more information, call 947-8336 or visit www.bpl.lib.me.us.